Alcohols Phenols And Ethers Question 4
Question: When alcohol reacts with concentrated $ H_2SO_4 $ intermediate compound formed is
[AFMC 2005]
Options:
A) Carbonium ion
B) Alkoxy ion
C) Alkyl hydrogen sulphate
D) None of these
Show Answer
Answer:
Correct Answer: A
Solution:
$ -\underset{\underset{H}{\mathop{|}}}{\overset{|}{\mathop{C}}}-\underset{\underset{OH}{\mathop{|}}}{\overset{|}{\mathop{C}}}- $
$ -\underset{\underset{\underset{\begin{smallmatrix} Protonated \\ alcohol \end{smallmatrix}}{\mathop{H}}}{\mathop{|}}}{\overset{|}{\mathop{C}}}-\underset{\underset{{}^{+}OH_2}{\mathop{|}}}{\overset{|}{\mathop{C}}}- $ In all cases intermediate is carbonium ion, and there may be 1, 2-hydride or 1, 2-methyl shift to form more stable carbonium ion.
BETA
